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Update to FreeBSD head 2018-06-01

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Git mirror commit fb63610a69b0eb7f69a201ba05c4c1a7a2739cf9.

Update #3472.
This commit is contained in:
Sebastian Huber
2018-08-21 13:47:02 +02:00
parent 2df56dbd60
commit bcdce02d9b
340 changed files with 27754 additions and 11720 deletions
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326
freebsd/sys/netinet/in_mcast.c
View File

@@ -53,6 +53,7 @@ __FBSDID("$FreeBSD$");
#include <sys/sysctl.h>
#include <sys/ktr.h>
#include <sys/taskqueue.h>
#include <sys/gtaskqueue.h>
#include <sys/tree.h>
#include <net/if.h>
@@ -61,6 +62,8 @@ __FBSDID("$FreeBSD$");
#include <net/route.h>
#include <net/vnet.h>
#include <net/ethernet.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_fib.h>
@@ -93,17 +96,25 @@ static MALLOC_DEFINE(M_IPMSOURCE, "ip_msource",
/*
* Locking:
* - Lock order is: Giant, INP_WLOCK, IN_MULTI_LOCK, IGMP_LOCK, IF_ADDR_LOCK.
* - Lock order is: Giant, INP_WLOCK, IN_MULTI_LIST_LOCK, IGMP_LOCK, IF_ADDR_LOCK.
* - The IF_ADDR_LOCK is implicitly taken by inm_lookup() earlier, however
* it can be taken by code in net/if.c also.
* - ip_moptions and in_mfilter are covered by the INP_WLOCK.
*
* struct in_multi is covered by IN_MULTI_LOCK. There isn't strictly
* struct in_multi is covered by IN_MULTI_LIST_LOCK. There isn't strictly
* any need for in_multi itself to be virtualized -- it is bound to an ifp
* anyway no matter what happens.
*/
struct mtx in_multi_mtx;
MTX_SYSINIT(in_multi_mtx, &in_multi_mtx, "in_multi_mtx", MTX_DEF);
struct mtx in_multi_list_mtx;
MTX_SYSINIT(in_multi_mtx, &in_multi_list_mtx, "in_multi_list_mtx", MTX_DEF);
struct mtx in_multi_free_mtx;
MTX_SYSINIT(in_multi_free_mtx, &in_multi_free_mtx, "in_multi_free_mtx", MTX_DEF);
struct sx in_multi_sx;
SX_SYSINIT(in_multi_sx, &in_multi_sx, "in_multi_sx");
int ifma_restart;
/*
* Functions with non-static linkage defined in this file should be
@@ -153,10 +164,9 @@ static int inm_is_ifp_detached(const struct in_multi *);
static int inm_merge(struct in_multi *, /*const*/ struct in_mfilter *);
static void inm_purge(struct in_multi *);
static void inm_reap(struct in_multi *);
static void inm_release(struct in_multi *);
static struct ip_moptions *
inp_findmoptions(struct inpcb *);
static void inp_freemoptions_internal(struct ip_moptions *);
static void inp_gcmoptions(void *, int);
static int inp_get_source_filters(struct inpcb *, struct sockopt *);
static int inp_join_group(struct inpcb *, struct sockopt *);
static int inp_leave_group(struct inpcb *, struct sockopt *);
@@ -189,10 +199,6 @@ static SYSCTL_NODE(_net_inet_ip_mcast, OID_AUTO, filters,
CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_ip_mcast_filters,
"Per-interface stack-wide source filters");
static STAILQ_HEAD(, ip_moptions) imo_gc_list =
STAILQ_HEAD_INITIALIZER(imo_gc_list);
static struct task imo_gc_task = TASK_INITIALIZER(0, inp_gcmoptions, NULL);
#ifdef KTR
/*
* Inline function which wraps assertions for a valid ifp.
@@ -218,6 +224,93 @@ inm_is_ifp_detached(const struct in_multi *inm)
}
#endif
static struct grouptask free_gtask;
static struct in_multi_head inm_free_list;
static void inm_release_task(void *arg __unused);
static void inm_init(void)
{
SLIST_INIT(&inm_free_list);
taskqgroup_config_gtask_init(NULL, &free_gtask, inm_release_task, "inm release task");
}
SYSINIT(inm_init, SI_SUB_SMP + 1, SI_ORDER_FIRST,
inm_init, NULL);
void
inm_release_list_deferred(struct in_multi_head *inmh)
{
if (SLIST_EMPTY(inmh))
return;
mtx_lock(&in_multi_free_mtx);
SLIST_CONCAT(&inm_free_list, inmh, in_multi, inm_nrele);
mtx_unlock(&in_multi_free_mtx);
GROUPTASK_ENQUEUE(&free_gtask);
}
void
inm_disconnect(struct in_multi *inm)
{
struct ifnet *ifp;
struct ifmultiaddr *ifma, *ll_ifma;
ifp = inm->inm_ifp;
IF_ADDR_WLOCK_ASSERT(ifp);
ifma = inm->inm_ifma;
if_ref(ifp);
CK_STAILQ_REMOVE(&ifp->if_multiaddrs, ifma, ifmultiaddr, ifma_link);
MCDPRINTF("removed ifma: %p from %s\n", ifma, ifp->if_xname);
if ((ll_ifma = ifma->ifma_llifma) != NULL) {
MPASS(ifma != ll_ifma);
ifma->ifma_llifma = NULL;
MPASS(ll_ifma->ifma_llifma == NULL);
MPASS(ll_ifma->ifma_ifp == ifp);
if (--ll_ifma->ifma_refcount == 0) {
CK_STAILQ_REMOVE(&ifp->if_multiaddrs, ll_ifma, ifmultiaddr, ifma_link);
MCDPRINTF("removed ll_ifma: %p from %s\n", ll_ifma, ifp->if_xname);
if_freemulti(ll_ifma);
ifma_restart = true;
}
}
}
void
inm_release_deferred(struct in_multi *inm)
{
struct in_multi_head tmp;
IN_MULTI_LIST_LOCK_ASSERT();
MPASS(inm->inm_refcount > 0);
if (--inm->inm_refcount == 0) {
SLIST_INIT(&tmp);
inm_disconnect(inm);
inm->inm_ifma->ifma_protospec = NULL;
SLIST_INSERT_HEAD(&tmp, inm, inm_nrele);
inm_release_list_deferred(&tmp);
}
}
static void
inm_release_task(void *arg __unused)
{
struct in_multi_head inm_free_tmp;
struct in_multi *inm, *tinm;
SLIST_INIT(&inm_free_tmp);
mtx_lock(&in_multi_free_mtx);
SLIST_CONCAT(&inm_free_tmp, &inm_free_list, in_multi, inm_nrele);
mtx_unlock(&in_multi_free_mtx);
IN_MULTI_LOCK();
SLIST_FOREACH_SAFE(inm, &inm_free_tmp, inm_nrele, tinm) {
SLIST_REMOVE_HEAD(&inm_free_tmp, inm_nrele);
MPASS(inm);
inm_release(inm);
}
IN_MULTI_UNLOCK();
}
/*
* Initialize an in_mfilter structure to a known state at t0, t1
* with an empty source filter list.
@@ -234,7 +327,7 @@ imf_init(struct in_mfilter *imf, const int st0, const int st1)
/*
* Function for looking up an in_multi record for an IPv4 multicast address
* on a given interface. ifp must be valid. If no record found, return NULL.
* The IN_MULTI_LOCK and IF_ADDR_LOCK on ifp must be held.
* The IN_MULTI_LIST_LOCK and IF_ADDR_LOCK on ifp must be held.
*/
struct in_multi *
inm_lookup_locked(struct ifnet *ifp, const struct in_addr ina)
@@ -242,17 +335,18 @@ inm_lookup_locked(struct ifnet *ifp, const struct in_addr ina)
struct ifmultiaddr *ifma;
struct in_multi *inm;
IN_MULTI_LOCK_ASSERT();
IN_MULTI_LIST_LOCK_ASSERT();
IF_ADDR_LOCK_ASSERT(ifp);
inm = NULL;
TAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) {
if (ifma->ifma_addr->sa_family == AF_INET) {
inm = (struct in_multi *)ifma->ifma_protospec;
if (inm->inm_addr.s_addr == ina.s_addr)
break;
inm = NULL;
}
CK_STAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) {
if (ifma->ifma_addr->sa_family != AF_INET ||
ifma->ifma_protospec == NULL)
continue;
inm = (struct in_multi *)ifma->ifma_protospec;
if (inm->inm_addr.s_addr == ina.s_addr)
break;
inm = NULL;
}
return (inm);
}
@@ -266,7 +360,7 @@ inm_lookup(struct ifnet *ifp, const struct in_addr ina)
{
struct in_multi *inm;
IN_MULTI_LOCK_ASSERT();
IN_MULTI_LIST_LOCK_ASSERT();
IF_ADDR_RLOCK(ifp);
inm = inm_lookup_locked(ifp, ina);
IF_ADDR_RUNLOCK(ifp);
@@ -453,7 +547,7 @@ in_getmulti(struct ifnet *ifp, const struct in_addr *group,
IN_MULTI_LOCK_ASSERT();
ii = (struct in_ifinfo *)ifp->if_afdata[AF_INET];
IN_MULTI_LIST_LOCK();
inm = inm_lookup(ifp, *group);
if (inm != NULL) {
/*
@@ -462,11 +556,13 @@ in_getmulti(struct ifnet *ifp, const struct in_addr *group,
*/
KASSERT(inm->inm_refcount >= 1,
("%s: bad refcount %d", __func__, inm->inm_refcount));
++inm->inm_refcount;
inm_acquire_locked(inm);
*pinm = inm;
return (0);
}
IN_MULTI_LIST_UNLOCK();
if (inm != NULL)
return (0);
memset(&gsin, 0, sizeof(gsin));
gsin.sin_family = AF_INET;
gsin.sin_len = sizeof(struct sockaddr_in);
@@ -481,6 +577,7 @@ in_getmulti(struct ifnet *ifp, const struct in_addr *group,
return (error);
/* XXX ifma_protospec must be covered by IF_ADDR_LOCK */
IN_MULTI_LIST_LOCK();
IF_ADDR_WLOCK(ifp);
/*
@@ -506,10 +603,9 @@ in_getmulti(struct ifnet *ifp, const struct in_addr *group,
__func__, ifma, inm, inet_ntoa_r(*group, addrbuf));
}
#endif
++inm->inm_refcount;
inm_acquire_locked(inm);
*pinm = inm;
IF_ADDR_WUNLOCK(ifp);
return (0);
goto out_locked;
}
IF_ADDR_WLOCK_ASSERT(ifp);
@@ -524,6 +620,7 @@ in_getmulti(struct ifnet *ifp, const struct in_addr *group,
inm = malloc(sizeof(*inm), M_IPMADDR, M_NOWAIT | M_ZERO);
if (inm == NULL) {
IF_ADDR_WUNLOCK(ifp);
IN_MULTI_LIST_UNLOCK();
if_delmulti_ifma(ifma);
return (ENOMEM);
}
@@ -541,8 +638,9 @@ in_getmulti(struct ifnet *ifp, const struct in_addr *group,
ifma->ifma_protospec = inm;
*pinm = inm;
out_locked:
IF_ADDR_WUNLOCK(ifp);
IN_MULTI_LIST_UNLOCK();
return (0);
}
@@ -552,36 +650,33 @@ in_getmulti(struct ifnet *ifp, const struct in_addr *group,
* If the refcount drops to 0, free the in_multi record and
* delete the underlying link-layer membership.
*/
void
inm_release_locked(struct in_multi *inm)
static void
inm_release(struct in_multi *inm)
{
struct ifmultiaddr *ifma;
IN_MULTI_LOCK_ASSERT();
struct ifnet *ifp;
CTR2(KTR_IGMPV3, "%s: refcount is %d", __func__, inm->inm_refcount);
if (--inm->inm_refcount > 0) {
CTR2(KTR_IGMPV3, "%s: refcount is now %d", __func__,
inm->inm_refcount);
return;
}
MPASS(inm->inm_refcount == 0);
CTR2(KTR_IGMPV3, "%s: freeing inm %p", __func__, inm);
ifma = inm->inm_ifma;
ifp = inm->inm_ifp;
/* XXX this access is not covered by IF_ADDR_LOCK */
CTR2(KTR_IGMPV3, "%s: purging ifma %p", __func__, ifma);
KASSERT(ifma->ifma_protospec == inm,
("%s: ifma_protospec != inm", __func__));
ifma->ifma_protospec = NULL;
inm_purge(inm);
free(inm, M_IPMADDR);
if_delmulti_ifma(ifma);
if (ifp != NULL) {
CURVNET_SET(ifp->if_vnet);
inm_purge(inm);
free(inm, M_IPMADDR);
if_delmulti_ifma_flags(ifma, 1);
CURVNET_RESTORE();
if_rele(ifp);
} else {
inm_purge(inm);
free(inm, M_IPMADDR);
if_delmulti_ifma_flags(ifma, 1);
}
}
/*
@@ -594,7 +689,7 @@ inm_clear_recorded(struct in_multi *inm)
{
struct ip_msource *ims;
IN_MULTI_LOCK_ASSERT();
IN_MULTI_LIST_LOCK_ASSERT();
RB_FOREACH(ims, ip_msource_tree, &inm->inm_srcs) {
if (ims->ims_stp) {
@@ -634,7 +729,7 @@ inm_record_source(struct in_multi *inm, const in_addr_t naddr)
struct ip_msource find;
struct ip_msource *ims, *nims;
IN_MULTI_LOCK_ASSERT();
IN_MULTI_LIST_LOCK_ASSERT();
find.ims_haddr = ntohl(naddr);
ims = RB_FIND(ip_msource_tree, &inm->inm_srcs, &find);
@@ -961,6 +1056,7 @@ inm_merge(struct in_multi *inm, /*const*/ struct in_mfilter *imf)
schanged = 0;
error = 0;
nsrc1 = nsrc0 = 0;
IN_MULTI_LIST_LOCK_ASSERT();
/*
* Update the source filters first, as this may fail.
@@ -1167,6 +1263,7 @@ in_joingroup_locked(struct ifnet *ifp, const struct in_addr *gina,
int error;
IN_MULTI_LOCK_ASSERT();
IN_MULTI_LIST_UNLOCK_ASSERT();
CTR4(KTR_IGMPV3, "%s: join 0x%08x on %p(%s))", __func__,
ntohl(gina->s_addr), ifp, ifp->if_xname);
@@ -1188,7 +1285,7 @@ in_joingroup_locked(struct ifnet *ifp, const struct in_addr *gina,
CTR1(KTR_IGMPV3, "%s: in_getmulti() failure", __func__);
return (error);
}
IN_MULTI_LIST_LOCK();
CTR1(KTR_IGMPV3, "%s: merge inm state", __func__);
error = inm_merge(inm, imf);
if (error) {
@@ -1203,13 +1300,15 @@ in_joingroup_locked(struct ifnet *ifp, const struct in_addr *gina,
goto out_inm_release;
}
out_inm_release:
out_inm_release:
if (error) {
CTR2(KTR_IGMPV3, "%s: dropping ref on %p", __func__, inm);
inm_release_locked(inm);
inm_release_deferred(inm);
} else {
*pinm = inm;
}
IN_MULTI_LIST_UNLOCK();
return (error);
}
@@ -1251,6 +1350,7 @@ in_leavegroup_locked(struct in_multi *inm, /*const*/ struct in_mfilter *imf)
error = 0;
IN_MULTI_LOCK_ASSERT();
IN_MULTI_LIST_UNLOCK_ASSERT();
CTR5(KTR_IGMPV3, "%s: leave inm %p, 0x%08x/%s, imf %p", __func__,
inm, ntohl(inm->inm_addr.s_addr),
@@ -1274,18 +1374,22 @@ in_leavegroup_locked(struct in_multi *inm, /*const*/ struct in_mfilter *imf)
* the transaction, it MUST NOT fail.
*/
CTR1(KTR_IGMPV3, "%s: merge inm state", __func__);
IN_MULTI_LIST_LOCK();
error = inm_merge(inm, imf);
KASSERT(error == 0, ("%s: failed to merge inm state", __func__));
CTR1(KTR_IGMPV3, "%s: doing igmp downcall", __func__);
CURVNET_SET(inm->inm_ifp->if_vnet);
error = igmp_change_state(inm);
IF_ADDR_WLOCK(inm->inm_ifp);
inm_release_deferred(inm);
IF_ADDR_WUNLOCK(inm->inm_ifp);
IN_MULTI_LIST_UNLOCK();
CURVNET_RESTORE();
if (error)
CTR1(KTR_IGMPV3, "%s: failed igmp downcall", __func__);
CTR2(KTR_IGMPV3, "%s: dropping ref on %p", __func__, inm);
inm_release_locked(inm);
return (error);
}
@@ -1316,18 +1420,6 @@ in_addmulti(struct in_addr *ap, struct ifnet *ifp)
return (pinm);
}
/*
* Leave an IPv4 multicast group, assumed to be in exclusive (*,G) mode.
* This KPI is for legacy kernel consumers only.
*/
void
in_delmulti(struct in_multi *inm)
{
(void)in_leavegroup(inm, NULL);
}
/*#endif*/
/*
* Block or unblock an ASM multicast source on an inpcb.
* This implements the delta-based API described in RFC 3678.
@@ -1489,7 +1581,7 @@ inp_block_unblock_source(struct inpcb *inp, struct sockopt *sopt)
* Begin state merge transaction at IGMP layer.
*/
IN_MULTI_LOCK();
IN_MULTI_LIST_LOCK();
CTR1(KTR_IGMPV3, "%s: merge inm state", __func__);
error = inm_merge(inm, imf);
if (error) {
@@ -1505,7 +1597,7 @@ inp_block_unblock_source(struct inpcb *inp, struct sockopt *sopt)
out_in_multi_locked:
IN_MULTI_UNLOCK();
IN_MULTI_UNLOCK();
out_imf_rollback:
if (error)
imf_rollback(imf);
@@ -1571,37 +1663,31 @@ inp_findmoptions(struct inpcb *inp)
return (imo);
}
/*
* Discard the IP multicast options (and source filters). To minimize
* the amount of work done while holding locks such as the INP's
* pcbinfo lock (which is used in the receive path), the free
* operation is performed asynchronously in a separate task.
*
* SMPng: NOTE: assumes INP write lock is held.
*/
void
inp_freemoptions(struct ip_moptions *imo)
{
KASSERT(imo != NULL, ("%s: ip_moptions is NULL", __func__));
IN_MULTI_LOCK();
STAILQ_INSERT_TAIL(&imo_gc_list, imo, imo_link);
IN_MULTI_UNLOCK();
taskqueue_enqueue(taskqueue_thread, &imo_gc_task);
}
static void
inp_freemoptions_internal(struct ip_moptions *imo)
inp_gcmoptions(epoch_context_t ctx)
{
struct ip_moptions *imo;
struct in_mfilter *imf;
struct in_multi *inm;
struct ifnet *ifp;
size_t idx, nmships;
imo = __containerof(ctx, struct ip_moptions, imo_epoch_ctx);
nmships = imo->imo_num_memberships;
for (idx = 0; idx < nmships; ++idx) {
imf = imo->imo_mfilters ? &imo->imo_mfilters[idx] : NULL;
if (imf)
imf_leave(imf);
(void)in_leavegroup(imo->imo_membership[idx], imf);
inm = imo->imo_membership[idx];
ifp = inm->inm_ifp;
if (ifp != NULL) {
CURVNET_SET(ifp->if_vnet);
(void)in_leavegroup(inm, imf);
CURVNET_RESTORE();
} else {
(void)in_leavegroup(inm, imf);
}
if (imf)
imf_purge(imf);
}
@@ -1612,20 +1698,18 @@ inp_freemoptions_internal(struct ip_moptions *imo)
free(imo, M_IPMOPTS);
}
static void
inp_gcmoptions(void *context, int pending)
/*
* Discard the IP multicast options (and source filters). To minimize
* the amount of work done while holding locks such as the INP's
* pcbinfo lock (which is used in the receive path), the free
* operation is deferred to the epoch callback task.
*/
void
inp_freemoptions(struct ip_moptions *imo)
{
struct ip_moptions *imo;
IN_MULTI_LOCK();
while (!STAILQ_EMPTY(&imo_gc_list)) {
imo = STAILQ_FIRST(&imo_gc_list);
STAILQ_REMOVE_HEAD(&imo_gc_list, imo_link);
IN_MULTI_UNLOCK();
inp_freemoptions_internal(imo);
IN_MULTI_LOCK();
}
IN_MULTI_UNLOCK();
if (imo == NULL)
return;
epoch_call(net_epoch_preempt, &imo->imo_epoch_ctx, inp_gcmoptions);
}
/*
@@ -1794,12 +1878,12 @@ inp_getmoptions(struct inpcb *inp, struct sockopt *sopt)
mreqn.imr_address = imo->imo_multicast_addr;
} else if (ifp != NULL) {
mreqn.imr_ifindex = ifp->if_index;
NET_EPOCH_ENTER();
IFP_TO_IA(ifp, ia, &in_ifa_tracker);
if (ia != NULL) {
if (ia != NULL)
mreqn.imr_address =
IA_SIN(ia)->sin_addr;
ifa_free(&ia->ia_ifa);
}
NET_EPOCH_EXIT();
}
}
INP_WUNLOCK(inp);
@@ -1907,7 +1991,7 @@ inp_lookup_mcast_ifp(const struct inpcb *inp,
mifp = NULL;
IN_IFADDR_RLOCK(&in_ifa_tracker);
TAILQ_FOREACH(ia, &V_in_ifaddrhead, ia_link) {
CK_STAILQ_FOREACH(ia, &V_in_ifaddrhead, ia_link) {
mifp = ia->ia_ifp;
if (!(mifp->if_flags & IFF_LOOPBACK) &&
(mifp->if_flags & IFF_MULTICAST)) {
@@ -2165,6 +2249,8 @@ inp_join_group(struct inpcb *inp, struct sockopt *sopt)
/*
* Begin state merge transaction at IGMP layer.
*/
in_pcbref(inp);
INP_WUNLOCK(inp);
IN_MULTI_LOCK();
if (is_new) {
@@ -2173,20 +2259,23 @@ inp_join_group(struct inpcb *inp, struct sockopt *sopt)
if (error) {
CTR1(KTR_IGMPV3, "%s: in_joingroup_locked failed",
__func__);
IN_MULTI_UNLOCK();
IN_MULTI_LIST_UNLOCK();
goto out_imo_free;
}
imo->imo_membership[idx] = inm;
} else {
CTR1(KTR_IGMPV3, "%s: merge inm state", __func__);
IN_MULTI_LIST_LOCK();
error = inm_merge(inm, imf);
if (error) {
CTR1(KTR_IGMPV3, "%s: failed to merge inm state",
__func__);
__func__);
IN_MULTI_LIST_UNLOCK();
goto out_in_multi_locked;
}
CTR1(KTR_IGMPV3, "%s: doing igmp downcall", __func__);
error = igmp_change_state(inm);
IN_MULTI_LIST_UNLOCK();
if (error) {
CTR1(KTR_IGMPV3, "%s: failed igmp downcall",
__func__);
@@ -2197,8 +2286,9 @@ inp_join_group(struct inpcb *inp, struct sockopt *sopt)
out_in_multi_locked:
IN_MULTI_UNLOCK();
INP_WLOCK_ASSERT(inp);
INP_WLOCK(inp);
if (in_pcbrele_wlocked(inp))
return (ENXIO);
if (error) {
imf_rollback(imf);
if (is_new)
@@ -2387,6 +2477,8 @@ inp_leave_group(struct inpcb *inp, struct sockopt *sopt)
/*
* Begin state merge transaction at IGMP layer.
*/
in_pcbref(inp);
INP_WUNLOCK(inp);
IN_MULTI_LOCK();
if (is_final) {
@@ -2397,6 +2489,7 @@ inp_leave_group(struct inpcb *inp, struct sockopt *sopt)
(void)in_leavegroup_locked(inm, imf);
} else {
CTR1(KTR_IGMPV3, "%s: merge inm state", __func__);
IN_MULTI_LIST_LOCK();
error = inm_merge(inm, imf);
if (error) {
CTR1(KTR_IGMPV3, "%s: failed to merge inm state",
@@ -2406,6 +2499,7 @@ inp_leave_group(struct inpcb *inp, struct sockopt *sopt)
CTR1(KTR_IGMPV3, "%s: doing igmp downcall", __func__);
error = igmp_change_state(inm);
IN_MULTI_LIST_UNLOCK();
if (error) {
CTR1(KTR_IGMPV3, "%s: failed igmp downcall",
__func__);
@@ -2415,6 +2509,9 @@ inp_leave_group(struct inpcb *inp, struct sockopt *sopt)
out_in_multi_locked:
IN_MULTI_UNLOCK();
INP_WLOCK(inp);
if (in_pcbrele_wlocked(inp))
return (ENXIO);
if (error)
imf_rollback(imf);
@@ -2641,6 +2738,7 @@ inp_set_source_filters(struct inpcb *inp, struct sockopt *sopt)
INP_WLOCK_ASSERT(inp);
IN_MULTI_LOCK();
IN_MULTI_LIST_LOCK();
/*
* Begin state merge transaction at IGMP layer.
@@ -2649,11 +2747,13 @@ inp_set_source_filters(struct inpcb *inp, struct sockopt *sopt)
error = inm_merge(inm, imf);
if (error) {
CTR1(KTR_IGMPV3, "%s: failed to merge inm state", __func__);
IN_MULTI_LIST_UNLOCK();
goto out_in_multi_locked;
}
CTR1(KTR_IGMPV3, "%s: doing igmp downcall", __func__);
error = igmp_change_state(inm);
IN_MULTI_LIST_UNLOCK();
if (error)
CTR1(KTR_IGMPV3, "%s: failed igmp downcall", __func__);
@@ -2885,10 +2985,10 @@ sysctl_ip_mcast_filters(SYSCTL_HANDLER_ARGS)
if (retval)
return (retval);
IN_MULTI_LOCK();
IN_MULTI_LIST_LOCK();
IF_ADDR_RLOCK(ifp);
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family != AF_INET ||
ifma->ifma_protospec == NULL)
continue;
@@ -2918,7 +3018,7 @@ sysctl_ip_mcast_filters(SYSCTL_HANDLER_ARGS)
}
IF_ADDR_RUNLOCK(ifp);
IN_MULTI_UNLOCK();
IN_MULTI_LIST_UNLOCK();
return (retval);
}